Calculating-machine.



P. s. BALDWIN. GALCULATING MACHINE. AIPLIOLTION FILED JUNE 15, 1912.

Patented Dec. 2, 1913.

9 SHEETS-sum1 I A "Il I y l y I t l Y P. S. BALDWIN.

GALGULATING MACHINE.

ma.. w 21m a4 e s D M is. mm n s m \W P 1U m l m l@ m mh ,w mN ,m m I Q S l SSN H lurl. w, VH m wrhnd. m NWN N A R S. BALDWIN. GALGULATING MACHINE.

APPLIUATION FILED JUNI: 15, 1912.

9 BEEETS-EHEET 3.

Patented Dec. 2,1913.

P. s. BALDWIN.

OALGULATING MACHINE. APPLICATION FILED JUNE 15, 191,2.

Patnted De.2,1`913. I

a o e,

` 9 SHEETS-SHEET 4.

.y Qld/clava?!- r11.l

mwN

P. S. BALDWIN.

- GALGULATING MACHINE.

APPLICATION FILED JUNE 1.5, 1912.

Patented Dec. 2, 1913.

9 SHEETS-SHEET (i.

who@

@a4/dw,-

Gibbon/was P.' S. BALDWIN. GALCULATING- MACHINE. APPLICATION FILED JUNE 15, 1912.`

Patented 15602, 1913.

9 SHEETS-SHEET 6.

F. S. BALDWIN. CALGULATING MACHINE.,

, v APPLICATION FILED` JUNE 15, 1912. 1,080,245. Patented Dec. 2, 1913.

9 SHEETS-SHEET 7.

F. S. BALDWIN. CALCULATING MACHINE. APPLIOATION FILED JUNE 15, 1912.

Patented Dec. 2, 1913.

9 SHEETS-SHEET 8.'

F. S. BALDWIN.

GALGULATING MACHINE. APFLIOATION FILED JUNE 15, 1912.

Patented Deo. 2, 1913.

9 SHEETS-SHEET 9.

WMe/.mao cf -v v $2 Maul 'UNITED sTATEs PATENT oEEIoE.

FRANK S. BALDWIN, OF NEW YORK, N. Y., ASSIGNOR T0 MON-ROE CALCULATIN G MACHINE COMPANY, OF NEW YORK, Y., A CORPORATION NEW YORK.

CALCULATING-MACHINE.

Application filed June 15. 1912. Serial N0. 703,901.

To all whom t may concern:

Be it known that I, FRANK S. BALDwiN, a citizen of the United States, resident of New York, in the county of New York and State of New York, have made a certain new and useful Invention in Calculating-Machines; and I declare the following to be a full, clear, and exact description ofthe same, such as will enable others skilled in the art to which it appertainsto make and use the invention, reference being had to the accom panying drawings, and to letters or figuresl of reference marked thereon, which form a part of this specificatlon.

Figure l is a plan v'iew of the machine' partly in section, the sections being taken on the lines 11-11, 1h42, and llt-13, Fig. 3. Fig. .2 is a side view of the machine. Fig. 3 is a section'on the line' 3 3, Fig. 1. Fig. 4 is a section on the lines 41-41, 42-15 fis- 43 Fig. 3, with one numeral key depressed, and one key raised, and a Section on the line i4-44, Fig. 3, with two primary wheel members in normal position and two primary wheel members moved toward each other, parts being omitted. Fig. 5 is a section on the linc'-, Fig. 4. Fig..6 is a detail face view of one of the primary wheel members. Fig. 7 is a detail side view of the same. Fig. 8 is a detail side View of the other primary wheel member. Fig. 9 is a detail face view of the same. Fig. 10 is a detail plan View partly broken away of the primary Wheel shaft. Fig. l1 is a detail side View partly broken away of one of the rocky bars for actuating a primary wheel member. Fig. 19. shows detail front views of the numeral keys. Fig. 13 is a detail front View of all ofthe numeral keys of one bank or series, one behind the other. -Fig. 14 is a` section on the line 14-14, Fig. 3. Fig. 15 vis a section on the line 14S-15, Fig. Fig. lis a detail side view of the pawl device for operating the numeral wheels at the rear of the carriage and of thc variable tension means for the spring brakes of the interine# diate gears. the rectangular path of the operating end of the pawl being shown in dotted lines. Fig. 17 is a section on the line 17-17. Fig. 16. Fig.` 18 is a detail front, view of the dogs of the carrying mechanism. their collars and shaft..and the spring brake for the hub of the cam upon said shaft. the

dogs at one end of the shaft being shown Specification of Letters Patent.

Patented Dec.e,1913.

as thrown over to the opposite side in dotted lines. Fig. 19 is a detail plan View of the central collar and dog of the series and the collar and dog next adjacent thereto. Fig. Q0 is a detail side view of one of the cam devices for returning av plunger to normal position. the dog with its cam and collar being shown as noved pivotally in dotted lines. Fig. "il is a detail side viewy of the cam device for returning a plunger to normal position of the central dog of the series, this cam being shown as mo-ved pivotally in dotted lines. Fig. 22 is a section on the line Q2--29 Fig. l5. Fig. Q3 is a. detail perspective view of oneof the plungers. Fig. 24 is a detail side view of the means for preventing reversc movement of the crank handle and its wheel connections. lFig. 25 is a detail side view of the circular plate forming part. of said means. Fig. 26 is a detail side view of the gear wheel in rear of said plate. Fig. 27 is a. detail plan view of the mutilated gear and the gear in rear of the same. Fig. Q53 is a detail perspective View of one of the shouldered posts for engagement with the operating crank handle. Fig.

9.9 is a section on the line 29-29, Fig. 5.

rying mechanism. Fig. 31 is a diagram-i matic side view of the longitudinal shaft of the carrying mechanism and the collars thereupon. Fig. 32 is a diagrammatic side view of a portion of this shaft and collars thereupon. partly broken away, showing the interfitting arcuate projections and recesses. Fig. 33'isa diagrammatic view of one of the registering wheels bearing the double series of numbers. Fig. 34 is a Side view of one of these wheels and the gear thereof.

The invention has relation to calculating machines. having Aior its object to 'provide improved means for the rapid solution of arithmetic-al problems.

Other objects and advantages will hercinaiter appear.

Tn the accompanying drawings. illustrating the invention. the numeral l designates the casing, a movable carriage located above the upper rear part of the casing and wherein the rcg'ristering mechanism or wheels are lfcated. the keyboard or series of dcpressible licvs being located forwardly orV i the machine 1n the usual manner. The apturn the gear 12 three teeth; and if the esl `moved laterally a short distance, the longest ,engagement with the numeral wheels 13 of` are provided to return the members of each cou le of wheels 5 to normal position, conerating lever or crank 3 by means of which the registering mechanism is operated is located at the right hand s'idc of the machine.

The registering mechanism will be first described, as follows: A longitudinal rotary shaft 4. provided with suitable bearings in the casing, carries a plurality of primary calculating wheels 5, keyed to the shaft to rotate therewith and capable each of an independent slidable movement upon the shaft'. Each wheel 5 consists of two mem pin 8 thereof will be moved into operative engagement with the. intermediate gear 12, so that a complete rotation of the wheel 5 will move the gear 12 one tooth; if the mem` ber 7 is moved farther to one side, the next and shorter pin 8 will be brought into operative engagement with the gear 12, so that a complete rotation of the wheel 5 will rotate the gear 12 two teeth; if the member 7 is moved still farther to one side, the third and still shorter pin 8 will be brought into operative engagement with the gear 12, and a co-mplete rotation of the wheel 5 will member 7 is moved still farther to one side, the fourth and shortest pin 8 will be brought into operative engagement with the gear 12, and a complete rotation of the wheel 5 will rotate the gear 12 four teeth. If the member 9 is moved upon its shaft to one side in the opposite direction to that in which the member 7 is moved for the purpose stated, all of its five pins 10 will be brought into operative engagement with the gear 12, and a complete rotation of the wheel 5 will turn the gear 12 tive teeth; and if the member 9 is movedlaterally as stated, and at the same time themember 7 is moved laterally to bring one, two, three or four of its pins into operative engagement with the gear -12, this gear will upon a completev rotation of the wheel 5 be turned siX, seven, eight or nine teeth. In this way the primary wheels 5 can be made to turn the intermediate gears 1 2 from one to nine teeth, these intermediate gears having operative the registering mechanism. Spring means sisting preferably of coiled springs 14 surrounding arcuate intertting hub extensions l 15 (Fig. 4) of the wheel members. .lt is preferred that the longest pin 8 of the member 7 shall engage a perforation 17 of the member 9, in order that the two members maymove closer together when in operative engagement with the gear 12.

The key operating mechanismwill now be described. The lateral adjustment of the primary calculating wheels 5 is effected by the keys 18. Thesekeys are arranged in any suitable number of parallel series, the members of eachseries being numbered from 1 to 9. A primary wheel 5 is provided for each of the series of keys. Located below each series of keys is a set of two rock bars 19 (Fig. 8), the members of each set having a separate pivotal connection 20 with the frame at the lower ends of end arms 2l. The members of each set have each an end extension 22 projecting upward and forked at 23 (Fig. 11) to extend between the primary wheels 5, so that upon actuation of a rock bar by operation of one of the keys 18, the primary wheel 5 corresponding to thebar will be laterally adjusted upon the shaft to an extent corresponding to the movement of the rock bar. vln order to move the rock bars the varying degrees required for the purpose stated. each key stem 24 is provided with a lower downward projecting cam or beveled lug The beveled or cam surfaces of the lugs are arranged at varying inclinations, to engage the upwardly directed-fiange19c and actuate the rock bar to a greater or less distance according to the numeral key depressed, the keys numbered 1, 2, 3 and 4 having each a lug 25 the cam surfaces 26 of which are of increasing inclinations with relation to the horizontal, to actuate one member 19ll of the rock bar couple varying distances to one side, to bring one, two, three or four of the pins of the primary wheel member 7 into use; the key numbered 5 has' a single lug 25 at the opposite side of its stem and arranged to actuate the other member 19b of the rock bar toward its mate, to bring the ve pins of the primary wheel member 9 into use; and the keys numbered 6, 7, 8 and 9 have each a double or divided lug 25 arranged to actuate both members of the rock bar toward each other, the member 19b being moved to bring the/liveypins of the wheel member 9into use, and the member 19a vbeing simultaneously moved to bring one,

pins of the wheel As each key is depressed a laterally extend- -ing spring 32 of the stem is carried through as stated hereinafter, the depressedA keys of all the series may be restored to normal position by moving the erasing plate to one side, by means hereinafter referred to. This erasing plate is carried in guideways 34'* of the frame, to provide for an accurate horizontal position and movement thereof, and the slots or perforations 33 are somewhat longer than the width of the stems of the keys, so that when the plate is adjusted or slid as stated the opening will be moved from over the end of the spring and the spring and key allowed to rise under the iutiuence of coil springs 35 surrounding the key stems.

An individual erasing means or rock bar 35a is provided for each series or bank of keys, and has engagement with the springs 32 to press the sameI toward the key stems, said barbeing carried by upward extending arms 36, pivoted to the frame at 37 and actuated by depressible keys 38,`through the medium of levers 38a, one key for each series or bank of the numeral keys. A spring means 39V is provided to return the universal erasing plate to normal position, and a spring means 40 to return the individual erasing means to normal position.

The intermediate gears 12 are provided each with a. spring-pressed roller brake 41 (Fig. 3), the springs 42 of the roller arms 43 being secured at one end at 44 (Fig. 17) in a stationary manner tothe shaft 45, upon which said arms are pivoted. A tension device is provided for the springs, consisting of a screw 46` (Fig. 3) having threaded engagement with a` crank arm 4T of the shaft 45, said screw bearing at one end against the frame at 48, whereby, upon adjustment of the screw. the shaft 45 will be rocked to vary the. tension of the springs 42 against the arms 43. ln case a variable and adjustable tension device is preferred, the screw 4G is adjusted to render it of no effect. and

. the following employed instead:

A lscrew 49 (Fig. 16) has threaded engagement with the en d of a crank arm 50 fast upon the. shaft 4T, said screw having at its end a bearing at 51 againstV the end of a loose arm 3g, :Q50 upon said shaft 45. said arm 52 having" a roller bearing against :a cam Ia' carried b v a ,-haft 73. to be hereinafter described. In this way, as the fhai T3 rotates, the portion 56 of the cam in con.-

tact with the roller53 will, through the medium of the screw 49, cause the shaft 45 and the springs carried thereby to be thrown to press the springs against the roller arms 43 to a greater extent than when the portion 57 of the cam is in engagcn'ientI .with the roller 53, said portion 5T being arranged to lessen the tension of the springs against thearms 43 at the time that the intermediate gears are moved by the. primary calculating wheels, said primary wheels being moved by means hereinafter described. The variable tension may be adjusted by adjustmentof the screw 49.

The carriage mechanism will now be described. A shiftable carriage Q is pivoted and movable upon alongitudinal shaft 59 (Fig. at the pper rear portion of the frame. Located` forwardly within said carriage are a series of numeral wheels 13 (Fig. 15), upon which is registered the calculation, through the medium of the carrying mechanism hereinafter described, said wheels beingA each loosely mounted upon a longitudinal shaft GO of the carriage. This carriage is provided with means whereby it v'may be moved longitudinally when it is desired to carry out the calculation to a .greater number of figures than there are series or banks of keys, this means consisting of a rotary shaft G1 (Fig. 1) providedforwardly of the casing with an operating handle 62 and at its rear end with a double crank arm 63 (Fig. 4), pins 64 being located at the end of the arms 63 and having engagement with one of a longitudinal series of notches 65 at the lower for iard edge of the vcarriage casing. Upon operation of the c ank handle the pin will lift the carriage and throw it one space, when the opposite pin will come in engagement With the next notch and throw the carriage another space. The carriage is provided above the series of notches thereof with a longitudinal serie of forward projecting pins 66, two of which when the carriage is in lowered or normal position rest in open-top vseats or notches't of upward projections or lugs G8 of the casing or frame of the machine. As the carriage is raised upon its pivot shaft and shifted space by space, the pins will be lifted with the carriage from said seats and the next4 pins in line will come into engagementvwith the seats to limit the downward novement of the carriage. The carriage is, :luring the operation of the mechanism to register the'caleulation upon the numeral vheels 13. locked in depressed position by means of an up Tard-extending hook arm 69 (Fig. S), the hub HSP as shown in dotted lines Fig. 3 ofvhich is loose upon the primar) wheel shaft. the upper hook end of said arni being located over one of' (Sti. llhen the calculation is completed, and the shaft 73 Vis rotated completely, a downthe pins.

I and at the finish of the calculation, and

throughout the calculation between start and finish has engagement with the circumferential surface 71 of the cam for the purpose stated.

The carrying mechanism between the nu-- meral wheels of the registering mechanism is described as follows: A longitudinal shaft 73Ymounted in journal bearings in the frame or casing is' provided at one end with a gear Wheel 74 in mesh with a gear 75, having the same number of teeth and being in turn in mesh with a gear 76, having also the same number of teeth and which is rotated by an operating crank handle TheV gears 75 and 76 turn upon lateral studs 78 and 79 of the frame, and the gear 75 is provided in front thereof with a mutilated gea j 80, of the same diameter but a few more th n half of the teethr of which are removed at one side of the gear, this gear having its teeth .in mesh with a smaller gear 8l on the primary wheel shaft 1, so that a half-rotation of the gears 75 and 80, brought about by a half-turn of the crank handle and of the gear 76, will turn the gear 81 yand the shaft 4 completely around. The shaft t is turned completely around during the first half-turn' of the crank handle, and during .the last half-turn of this handle and of. the gears the shaft 4 is held stationary by vmeans of. a

ldouble tooth 82 ofits gear, said tooth havmg an arcuate concave outer surface 1n en-` gagement with the cylmdrlcal surface 83 of the mutilated gear. Carried bythe shaft 73 are a plurality of collars a, I), c, (Le, f, g, L and i; the first four collars a, '6, c and ci being provided each with two pivoted carrying dogs y','said dogs being-pivoted at 7c to radial arms m of thecollars; whereas the balance of the collars are provided each with a" single carrying dog a.' The collars a to e inclusivepare fixed upon the shaft, the collar c, having a pinconnectio-n-e5, with the shaft, and the collars a,'to e, inclusive having arcuate intertting lateral projections and/similarly formed recesses e6, c7.- The distances between the dogs carried by thel collars ai, c, b and a increase, and beginning with the collar @which is the central collar of the series, the dogs on the collars d, c, and a are arranged in spiral lines about onefourth around the shaft in two directions, the dogs forming one spirall acting to carry f -When the shaft 73 is rotated in one direction,

. as for instance for addition or-multiplication, and when revolved in the opposite direction the dogs of. the other spiral will act in an inverse vision.

The collars f to z' inclusive are capable of an independent oscillating movement upon the shaft 73, the .collars carrying lthese dogs having interitting shoulders or projections, the oscillating movement of these collars f to 'i inclusive causing the dogs thereof to arrange themselves in a spiral line about one-fourth around the shaft 73. when the shaft is turned in one direction and in an opposite or intersecting spiral line when the shaft is rotated in the opposite direction. In this way, when the shaft 73 is rotated in one direction the dogs of the oscillatory collars will arrange themselves in a spiral line in continuation of the spiral `arrangement of one set of dogs of the collars a to CZ inclusive, thus forming a spiral line of dogs about one-half around the sha-ft 73 when said shaft is rotated in one direction; but when said shaft is rotated in the opposite direction the dogs of the loose collars will arrange themselves in a spiral line in continuation ofY the other set of dogs carried by the collars a to d inclusive, and thus formv an oppositely pitched spiral of dogs about one-half around the shaft 73. It will also bey noted that the dog of the central collare is at the center of and in line with either -v of these spiral arrangements, and that when the shaft 73 is rotated in one direction the dogs will act in succession in one spiral for the carrying operation from one end of the shaft to the other, and when the shaft'lis rotated in the opposite direction the dogs will operate in succession in an oppositely pitched' spiral. The 'intermediway, as for subtraction or diate gears 12 are loosely journaledupon their,

shaft, and between the gearsproject longitudinally movable plungers p, these plungers being carried by the shaft of the intermediate gears. The upper-end' of each plunger is beveled as shown in Fig, 23 for engagement with a lateral extension (7 of one of the teeth of each numeral wheel 13. Each plunger is provided with a spring brake r, so that it will be retained in position as moved. f

The operation of the carrying devices is as follows: The shaft 4 isrotated once completely, ,as previously explained, the carrying shaftv 73 rotating also oncef completely, and as the lateral tooth extension q of any one of the gears 13 is causedto engage with the upper beveled end of the plunger p below the same, the plunger is forced down tothe lower limit of its movement, a cam head .s of the plunger being at the same time depressed in position to 1n the rotation' of the shaft'73, engage and throw the dog y' immediately below the plunger so that the i opposite end y" of the dog Will project in ,position to engage and turn thevnext inter- `which time the plunger will be caused to resume its normal position by a cam t upon the radial dog-carrying arm. Each collar has two laterally opposite radial arms m, the dogbeing pivoted at its inner end at 7c to one of these arms and having an outer end extension u which is normally seated in a recess or notch u of the other arm, projecting beyond said recess so that it may be engagedv by the cam head of the plunger. The opposite side or end of the dog is normally seated in a recess fv at the outer end of the radial arm at this side. Spring means o are provided to return each pawl to normal position after it is released. The pawls operate in planes at right angles'to the radial arms upon which they are pivoted. The cam head of each lplunger is beveled at opposite ends thereof, so that it will'operate and throw the dog in either direction of rotation. Thecam t upon each of the collars a to d inclusive is double, to return the plunger to normal position in either direction of rotation. And in order that the cams of the dogs f to z' inclusive may operate' to return the plungers correl' spending thereto to normal position in line.

either position of these dogs as oscillated with their carrying arms to .one side or the other, these cams t are pivoted to their carrying arms at t* (Fig. 20), and as each collar is moved in turn by the interitting hubs, first the cam t\ of the collar f is caused to turn upon its pivot by engagement of a pin u of the collar e with a slot u'2 of the cam; and as the next collar g is caused to move by the interfitting hubs, its

cam t2 is caused to turn pivotally inthe same manner, and so on to the end of the The cam t3 of the middle collar e also requires to be thrown to operate in either position of the collarsand their dogs, and is pivoted upon the shaft 73, being provided with va slotted extension t4 at the op posite side of the shaft, the slot of said extension being engaged by a pin t of the collar f, to throw the cam when required. The carrying dogs are arranged wholly upon one side' of the axis of the shaft 73,

'upon the side corresponding to the nontoothed portion of the gear 80, so that the shaft 4 is caused to have a complete rota-y tion and to cause the required movement of the registering mechanism, and is at rest during the time that the carrying mechanisin is being operated.

A means is provided to prevent reverse movement of the operating handle and of the gear` wheels-until the complete rotation ,of the handle and of the gears in either direction is completed, consisting preferably of oppositely extending spring pressed pawlsw, lw (Fig. 24'), an intermediate pivoted member fw2 operating to normally hol-d,4

both of said pawls from engagement with the teeth of the gear 74, said member having an inward projectipn w3, normally in engagement with a notch Q04 of a circular plate a: located at the outside of the gear 74 and upon the same shaft, said plate having an inward projecting pin a2', with which either of diametrically opposite pins m2 of the gear 74 have engagement, to turn said plate a complete rotation upon a complete turn of the gear 74, but allowing the gear 74 to turn one-half backward without actuation of said plate. As the plate is turned the beveled end of the notch thereof will turn the member L02 upon its pivot, to throw one of the pawls into engagement with the gear 74, the projection lw3 riding upon the outer circumferential smooth surface of the plate to cause said pawl to remain in engagement with said gear, and at the end of the complete turn falling bac-k into the notch, under the influence of a spring x3, and throwing the pawl out of engagement with the gear. Vtithin the rear portion of the carriage are located, upon a longitudinal shaft 84, a series of numeral wheels 85, numbered from one to nine in a double reverse series, sight openings 86 in the carriage being intended to expose the number upon said wheels indicating the quotient in division and the multiplier in multiplication. The wheels 85 are operated individually from the shaft 73, so that each rotation of the shaft 73 will turn the Wheel 85 to be operated one tooth, this being accomplished by means of a pawl 86a, having an operating connection with' said shaft, preferably by means of a rectangular slot 87 in the end of the pawl, said slot or opening being engaged by a cam 88 upon the shaft 73, whereby the movement of the pawl will be first directly toward the gear 89, fast upon the wheel 85 to be turned, one gear 89 being provided for each said wheel; the movement of the operating end of the pawl being next ina straight line at right angles to its first movement, to throw the gear 89, a pin 90 having' movement in a slot 91 of the pawl,

extending pins 92, which in the rotation of the wheels are normally allowed to turn freely. The shafts 84/ and 6() which carry 'wheels 13 and 85 are provided with laterally these wheels are movable endwise in their vbearings at the end of the carriage, against the tension of springs 93 which return the shafts when released' to normal position.

Each shaft is provided with an end collarl 93 .having an inward projecting pin 94, which inthe normal positionl of the shaft is seated in a recess 95 of the end of the carriage, to hold the shaft against rotation, but when either shaft is moved endwise, by taking hold of the crank handle 96 or 96', it may be held out against the tension of the spring' 93 and the shaft turned by said han-r lbeing capable of being turned separately with relation to the shafts, when the shafts are held stationary. In performing addition and multiplication (which is repeated addition), the operating handle 3 is in the position s hown in Fig. 2 of the drawings, and a complete turn of the handle is made in a clockwise direction. In subtraction and in/division (which is repeated subtraction) the operating handle is located in the position shown in dotted lines, Fig. 2, being f turned first one-half reverse clockwise from the first named starting position, after which, to perform the calculation, the handle is turned one complete rotation in a reverse clockwise direction. During this halfturn which the handle must make to start-' ing position for these two calculations the gear 81 and the shaft 4 will remain stationary, as also the primary calculating wheels; and during this half turn also the plate will remain stationary, for reasons previously stated. i

In order to provide a positive indication that the handle and the wheels inoperative y connection therewith are at starting position for` the performance of the calculation, a stop means is provided for the handle when it=arrives at either starting position, consist-4 ing preferably of a spring-pressed-pin 98 (Fig. 29) carried by the handle and having engagement with a shoulder 99 (Fig.- 28) of a post 100 of the casing, said pin being lifted outward against the tension of its spring 101 by means of the handle knob 102, the handle being then moved past the shoulder and the pin allowed to move .back to normal position, Where it will stop the handle at the completion of the turn. Two posts 100 are provided, one diametrically opposite ders e2, e3.

to the other, and the shoulder 99 ist provided upon each post. As the numeral wheels 13 are returned to zeroby operation of the crank handle 96, at the end of the movement, this handleis designed to automatically'operate the universalerasing plate, to return all of the depressed keys of all the series to nermal. position, preferably through they me.- dium of a bell crank lever 102 with which said handle contacts, the other arm of said lever having engagement with the erasing plate.

A means is provided for the automatic operation of the universal erasing plate at the` end of the movement or complete turn of the crank handle 3 in either direction, consisting preferably of a lever 103 (Fig. 5), pivoted at one end thereof at 104, the opposite 'endof said lever being pro- ,vided with a beveled portion 105 with which a beveled inward projecting pin 106 of the handle 3 has engagement to throw the lever, said lever having voperating engagement with `the erasing plate through the medium of a .pin 107, said pin being moved against ,the tension of its spring 108, whereby when the handle pin has passed over and from engagement with said lever, the pin will be returned to normal position, -at the same time returning the lever 103 to normal position. 'The beveled portion 105 of the lever is provided in duplicate, the bevel of the two parts being opposite, so that the lever is operated at the end of the rotation of the crank handle in either direction, the pin 106 of the handle being opposit'ely beveled yat 106a for the same purpose. The lever 103 may be thrown endwise, so that it will not be operated by the crank handle, by means of an operating knob 109, a slot 110 being provided in the lever end for engagement with its pivot, to allow this movement. This knob 109 may be used to throw the lever 103 to move the erasing plate at any time desired. It is preferred to providea spring brake 111 for the hub 72 (Fig. 18) of the cam 72a, said hub having a clutch connection 72d with the end collar z', being an interfitting arcuate lateral projection and a similarly formed recess. l The collar e, being the last collar of the series a., to e, fixed to and rotating with'the shaft 73, is provided with a laterally projecting arcuate portion e', terminating at its ends in shoulfirst collar of the series f to t', movable upon the shaft 73, is provided with a laterally projecting arcuate portion f', terminatlng at its ends in shoulders f2, f3, of which shoulder f2, is normally in contact with shoulder e2, the other shoulder f3, being separated from the shoulder e3, by an interval f4, said collar f, having upon the opposite sideA thereof a second arcuate later-v ally projecting portion f5, terminating at its The nekt collar f, being the ends in shoulders f, f1. The next collar g, l

having at its opposite side a secondarcuate laterally projecting portion y, terminating at its ends in shoulders y, (/T. The next collar z, is provided with a laterall jecting arcuate portion 71,', tei'iniiiatiiig at its ends in shoulders h2, h3, ot" which one shoulder if, is normally in contact with shoulder g, and the other shoulder /z, is

separated from the shoulder g, b v an interval if, of greater extent than the interval g4, said collar h, having at its opposite side a second arcuate laterally proJectiiig portion if, teru'iiiiating at its ends in shoulders h", k7. The last collar t', is provided with a laterally projecting arcuate portion ai. terminating at its ends in shoulders i2, i, of which one shoulder 2, is normally in contact with shoulder h, the other shoulder z'sgbeiiig separated from the shoulder It?, by an interval 4, of greater extent than the interval h4. The shaft 73, is turned in the direction o't' the arrow, Fig. 30, to causev the collar c, to move with the shaft and close up the interval et, separating the shoulders ea, f3, these shoulders then havingcontact to rotate the collar j', with the collar e; the collar f, in its movement with the shaft closing up the interval f, separating the shoulders f7, g3, when these shoulders Will have `contact to rotate the-collar g, With the collar f; the collar g, in its movement with the shaft closing up the interval g4, separating the shoulders gl, h3, these shoulders then having contact to rotate the collar z.,.\vith the collar g; the collar z, in its movement. with the shaft closing up the in terval separating the shoulders k7, i3, these shoulders then having contact to turn the collar z', with the collar h. Movementv Having thus 'described my invention, What Iclaim and desire to secure by Letters Patent is A., calculating machine, comprising a registering mechanism including primary actuating Wheels constructed each of independently movable members capable ot movement in opposite directions toward common central points for certain numbers in series, and means for moving said Wheels in opposite directions for the purpose specified.

2. A calculating machine, comprising a registering mechanism including primary actuating wheels constructed one member of each wheel to be moved in one direction for i certain succeeding numbers, the other meinprober of each Wheel to be moved in the opposite direction for the next succeeding nuin- 1 ber, and both members of each Wheel to be moved toward each other for certain other succeeding numbers, the movement of the members being toward common central points, and means for moving the members of the wheels as stated for the purpose specified.

3. A calculating machine, comprising a registering mechanism including primary ae tuating Wheels constructed one member of each wheel to be inovedin one direction for numbcrsone to tour inclusive, the other member of each Wheel to be moved in the opposite direction for the number five, and both members of each Wheel to be moved to ward each other for numbers six to nine in elusive, the movement of the members being toward common central points, and means for moving the members of the Wheels as stated for the purpose specified.

4. A calculating machine, comprising a registering mechanism including a plurality of numeral Wheels, a primary rotatable and laterally movable calculating Wheel composed of tivo'members arranged at opposite sides of a central space, a Wheel intermediate a numeral Wheel and'primary calculating Wheel adapted to mesh With said members,

means for holding said members in normal position, and means for independently or conjointly moving the primary Wheel members laterally to bring one or more teeth of said members in line With the intermediate Wheels, and means adapted to rotate the primary wheels for the purpose stated. ,f

5. A. calculating machine, comprising a registering mechanism including a plurality of numeral Wheels, primary rotatable calculating wheels each composed of two members having pins and capable of independent or conjoint slidable movement in opposite directions and arranged at oppositel sides of a central space, intermediate Wheels adapted to mesh each With the pins of either or both said members, means for holding said members in normal position, means for independently or conjointly moving the members to bring one or more pins thereof in line with the intermediate Wheels, and means for roregistering mechanism including a plurality ot numeral wheels, a primary rotatable and laterally movable calculating wheel for each numeral wheel, an inlcrn'iediate wheel adapted to mesh with both the primary and the numeral wheels, sald primary wheels being 'the teeth ot' said members out of engagement with thel intermediate wheels, means for moving the members of the primary wheels laterallyv to bringl one or more teeth thereiztl in line with the intermediate Wheels, and means for rotati'nethe primary Wheels. 'i'. A calculating machine, comprising a registering mechanism, including a plurality olf nauurral wheels. an intermediate wheel te; eat-h nun'ieral wheel, a rotatable and laterally movabh` primary wheel for each intermediate wheel, the primary wheels being each composed of two members having pins ot' dill'erent lengths arranged at opposite sides of a4 central space, a laterally movable bar having an operative engagement with each of said members, a 'plurality of keys having engagement with the bars to move the same different distances and said members 'corresponding distances, and means for rotating the primary wheels.

S. A calculating machine. comprising a plurality oi' numeral wheels, an intermediate wheel for each nun' eral Wheel, a rotatable and laterally mova le primary wheel for each intermediate wheel, the primary wheels being cach composed of two members having pins ot' different lengths arranged at opposite sides of a central space, a Ahorizontally arranged laterally swinging bar having operative engagement with each of said members to move it laterally, a plurality of keys adapted to move the bars dilerent distances and said members cru-responding distances7 and means` for rotating the primary Wheels.

9. A calculating machine, colnprising a registering mechanism including a plurality ot numeral wheels, an intermediate Wheel.

tor each numeral Wheel, a primary calculating wheel for each intern'iediate wheel, said primary wheel being composed of twomembers having pins of different lengths arranged on opposite sides of a central space, an elongated laterally swinging bar having an operative. engagement with each of said members to move it laterally, a plurality of keys having stems provided with cam beveled ends engaging the bars to move them different distances and said members corresponding distances, and means for rotating the primary wheels.

10. A calculating machine, comprising a plurality of numeral wheels, an intermediate wheel for each numeral Wheel, a primaryv calculating Wheel for each intermediate wheel, said primary Wheel being composed of two members having pins of dili'erent lengths arranged on opposite sides ot' a central space, an elongated laterally movable bar for each of said members having operative engagement therewith to move it laterally, a plurality of keys having stems provided with cam beveled ends ot' varying angular-relation engaging the bars to move them laterally'diferent distances and said members corresponding distances, and means for rotating the primary wheels.

11. A calculating machine,- comprising a registering mechanism including a primary calculating wheel composed of two members, alaterally movable elongated bar having operative engagement with each of said ,mem- -bers to move it to a set up position, a plurality 4of keys having stems adapted to move the bars laterally when the keys are depressed, means for holding and releasing the I keys at and from their depressed position, and means for rotating the primary wheels while the keys are held in depressed position.'

12. A calculating machine, comprising a registering mechanism including. .a primary calculating wheel composed of two independently" movable members capable -ot' movement in opposite directions toward common central points for certain numbers in series, a laterallyv movable elongated bar having operative engagement with each of said members to moveit laterally to a set up position., a plurality of keys having stems adapted to move the bars lateral-ly different distances `and said members corresponding distances when the keysare depressed, means for holding the keys in depressed position and for'holding'said members in set ,up position, means for releasingv the keys and for returning them to normal position, means for returning said members and said bars to normal position, and means for rotating the primary Wheels While the keys are held in depressed position and said members are held in set up position.

18. A calculating machine, comprising a registering mechanism including a plurality of numeral wheels, a plurality of intermediate wheels adapted tc meshV therewith, a shaft carrying a plurality of primary calculating Wheels, means for setting up said primary Wheels, a second shaft provided with a carrying mechanism -for the intermediate wheels, an operating means having av crank. handle, gear connections between said operating means and the first named shaft and between said mea-ns and said second shaftfor turning the first named shaft and the primary wheels during the first half` revolution of said handle and for turning said second shaft and the carrying mechanisln, said carrying mechanism having opl erative engagement with saiintermediate Wheels When the primary Whee s are atrest, means for holding the primary Wheels and their shaft stationary when at rest, and means for preventing reverse movement of said handle and said gear connections until the complete revolution of said handle is effected.

said carrying mechanism having operative` engagement with said intermediate wheels' when the primary wheels are at restmeans for holding the primary Wheels and preventing reverse movement of said handle and Vsaid gear connections until the complete revolution of said handle is effected, and a releasable stop means for said handle at the end of its movement.

15. A carrying mechanism for calculating machines, comprising a shaft, a plurality of independently movable intermediate gear Wheels thereupon, a second shaft, a plurality of numeral Wheels upon said second shaft having gears in mesh with said intermedi- Jate Wheels, and carrying devices comprising an endvvise movable plunger for each intermediate Wheel seated in the first vnamed shaft, a third shaft parallel to the first named shaft, pivoted carrying/dogs upon said third shaft adapted to been aged by said plunger in therotation of t e first named shaft and to be thrwn into engagement with the succeeding intermediate Wheel to cause said 'Wheel Vto rotate one tooth, the numeral Wheels being provided With means for depressin said plunger once during each rotation t ereof.

-16. A carrying mechanism for calculating machines, comprising a` shaft, a plurality of independently movable intermediate gear Wheels thereupon, a second shaft,\a plurality of numeral Wheels upon said second shaft having gears in mesh With said intermediate Wheels, and carryingdevices, comprising an endvvise movable plunger for each intermediate Wheel seated in the first nanied shaft, a third shaftparallel to the first named shaft, pivoted carrying dogs upon the third shaft one -of which is adapted to be engaged by said plunger in the rotation of the first named shaft and thrownF their' shaft stationary When at rest, means for into engagement 'with the succeeding inter: mediate wheel to rotate the same one tooth, the numeral wheels being provided with means for depressing said plunger once during each rotation thereof, cam means carried 4by said third shaft for returning the plunger j to normal position, and spring means for returning the carrying dogs to normal position.

17. A carrying mechanism for calculating machines, comprising a shaft, a plurality of independently movable intermediate gear Wheels upon said shaft, a second shaft, a plurality of independently movable numeral Wheels upon said second shaft having gears in mesh with said intermediate Wheels, and carrying devices comprising an endwise movable plunger for each intermediate Wheel seated in the first namedW shaft between the intermediate Wheels, one end of said plunger having a cam beveled head and the other end of the plunger being beveled, a third shaft parallel to the first named shaft, pivoted dogs carried by said third shaft, one of said dogs being adapted to be engaged by said cam head in the rotation of the first named shaft and thrown into engagement with the next succeeding intermediate Wheel to rotate the same v,one tooth, the numeral Wheel gears having each a lateral projection of one of their. teeth adapted to engage the upper beveled end of said plunger and move it endwise once during each rotation of the first named shaft into the line of travel of the dog.

18. A carrying mechanism for calculatin machines, comprising a shaft, a plurality -o intermediate Aindependently movable gear wheels thereupon, a second shaft, a plurality of numeral wheels upon said second shaft having gears in mesh with said intermediate Wheels, carrying devices comprising' an end- Wisemovable plunger for each intermediate Wheel seated in the first named shaft, a third shaft parallel to the first named shaft, pivoted carrying dogs upon said third shaft, one of said dogs being adapted to be engaged by said plunger in the rotation of the first named shaft` and thrown into engagement with the next succeeding intermediate wheel to rotate the same one tooth, the numeral Wheels being provided With means for depressing the plunger once duringeach rotation thereof, said second shaft being movable endvvise in its bearings and having means for normally preventing rotation thereof and a crank handle, said numeral Wheels having pins, and a stationary bar having lateral projections engaged by. said pins in the rotation of said second shaft and its Wheels to turn said Wheels back to zero.

19. A carrying mechanism for calculating machines, comprising a shaft, a plurality of independently movable intermediate gear' Wheels thereupon, a second shaft, a plurality of` numeral wheels upon said second sha having gears in mesh with said intermediate wheels, and carrying devices comprising an endwise movable plunger for each intermediate wheel seated in the first named shaft, 1a third shaft parallel to the first named shaft, pivoted carrying dogs upon said third shaft, one of said dogs being adapted to be engaged by said plunger in the rotation of the first named shaft and' thrown into engagement with the next succeeding intermediate wheel to rotate the same one tooth, the numeral wheels being provided with means for depressing said plunger once during each rotation thereof, a fourth shaft, l5 a series of independently movable numeral 4wheels thereupon, and means for turning the last named lwheels one tooth for each rotation of said thirdshaft comprising a pawl having means of operative connection with said third shaft to cause the pawl to move in straight lines at right angles toweach other. y Y

20. A calculating machine, comprising a registering mechanism including a pivoted carriage, a shaft having endwise movable l bearings in said-carriage and carrying aseries of numeral wheels and a crank handle, means for normally preventing rotation of said shaft releasable upon endwise shaft movement, a shaft carrying a plurality of intermediate gear wheels adapted to mesh with said numeral wheels, a shaft carrying a plurality of primary calculating wheels, means for setting up said primary wheels,a shaft provided with carrying mechanism for the intermediatey wheels, an operating means Y having a crank handle and gear connections with said primary wheels and said carrying mechanismvmeans for holding down said 4g carriage during a revolution of said handle and for releasing the carriage at the end of the revolution, and means for returning the -numeral wheels back to zero when the carriage is raised at the end the handle revo- 45 lution comprising pins upon the numeral wheels and a stationary bar having lateral 21. A calculating machine comprising a registerin mechanism including a pivoted and endwise shiftable carriage, a shaft having-endwise movable bearings in said carriage and carrying a series of numeral wheels and a crank handle, means lfor normally preventing rotation of said shaft releasable upon endwise shaft movement, a shaft carrying a series of intermediate gear Wheels adapted to mesh with said numeral wheels, a shaft carrying a plurality of primary calculating wheels, means for setting up said primary wheels, a shaft provided with carrying mechanism for the intermediate wheels, an operating means having 'a crank handle and gear connections with said primary wheels and said carrying mechanism, means for holding down said carriage during a revolution `of said. handle' and for 'releasing the carriage at the end' of the revolution, means for returning the numeral .,wheels back`to zero when the carriage is raised comprising' pins upon. the numeral wheels and a stationary bar having lateral projections normally out of engagement with said pins Aand engaged thereby when the shaft is moved endwise in the'rotation of the numeral wheel shaft and numeral wheels, and means for shifting the carriage endwise .comprising a rotary lvshaft having a double crank arm at its inher end and a crank handleat its outer end, and pins at the ends `of said arm having engagement with a longitudinal series of notches at the lower forward edge of the carriage.`

In testimony whereof I afiX my signature,

in presence of two witnesses.

FRANK S. BALDWIN.

Witnesses:

RICHARD A. CURTIN, GEORGE M. ANDERSON 

